Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12416355 | Power transmission device | Katsunori Yamashita, Hirohisa Yukawa, Masahiro Kouya, Tomoo Ikeda, Kenji Kojima +5 more | 2025-09-16 |
| 5270772 | Image-forming apparatus having a body formed of vertically separable blocks | — | 1993-12-14 |
| 4974020 | Removable developing units for a copying machine and display for indicating the useful life of the machine | Junichi Takamatsu | 1990-11-27 |
| D312272 | Developer cartridge | Junichi Takamatsu | 1990-11-20 |
| D308696 | Process unit for copying machine | Akiyoshi Tanizawa, Junichi Takamatsu | 1990-06-19 |
| 4908668 | Image-forming machine | Junichi Takamatsu | 1990-03-13 |
| 4875077 | Image-forming machine | Junichi Takamatsu | 1989-10-17 |
| 4829334 | Image-forming machine having a cover member for covering part of an image bearing member | Junichi Takamatsu | 1989-05-09 |
| 4768055 | Image forming machine having a toner recycling unit | Junichi Takamatsu | 1988-08-30 |
| 4714338 | Electrostatic copying apparatus | Kazumi Iida, Yosuke Ohata, Keiichiro Hyodo, Tadashi Umeda, Keiichi Kishimoto | 1987-12-22 |
| 4678178 | Sheet material conveying device | Arihiro Tsunoda, Satoshi Tanaka | 1987-07-07 |
| 4666285 | Electrostatic copying apparatus | Kazumi Iida, Yosuke Ohata, Keiichiro Hyodo, Tadashi Umeda, Keiichi Kishimoto | 1987-05-19 |
| 4666283 | Electrostatic copying apparatus | Kazumi Iida, Yosuke Ohata, Keiichiro Hyodo, Tadashi Umeda, Keiichi Kishimoto | 1987-05-19 |
| 4636057 | Electrostatic copying apparatus | Kazumi Iida, Yosuke Ohata, Keiichiro Hyodo, Tadashi Umeda, Keiichi Kishimoto | 1987-01-13 |
| 4520354 | Display device for copying apparatus | Tadashi Umeda, Hideo Miyoshi, Keiichi Kishimoto, Kazumi Iida, Yuji Abe +1 more | 1985-05-28 |